Understanding Skylight Condensation and How It Can Be Prevented

08 April 2021

The basic cause of skylight condensation is the converting of vapour into liquid. When air pockets are moisture-saturated, the moisture escapes as droplets of water. A poorly designed and installed skylight, when exposed to these conditions, will cloud on the inside with mist.

Skylight condensation typically occurs when warm, moisturised air rises and makes contact with the cool or cold inner glass surface of a roof window. This moisture may accumulate on surfaces other than the skylight glass as well.

Everyday activities in a household can add to the humidity levels in the home’s interior atmosphere. These activities include cleaning, showering and stove-top cooking. Even human breathing, talking and perspiring can contribute to skylight condensation.

Common signs of skylight condensation include bubbling, cracking and peeling wall paint. Other signs are accumulations of mould or mildew on window frames, baseboards and walls, deteriorating insulation in walls and weakening tiles. Warping wooden furniture and rotting wooden wall structures also indicate the occurrence of skylight condensation.

Frequent Skylight Condensation Occurrences in Winter

Skylight condensation most frequently occurs during the winter months. In cold weather, temperature extremes are present in spaces between the internal and external glass panes of your skylight. Since warm air contains greater amounts of moisture, it is heavier than cold air. As warm air rises and connects with cold roof window glass, moisture condenses on the glass.

Best Ways to Prevent Skylight Condensation in Your Home

Recommended techniques for preventing the damaging effects of skylight condensation from occurring in your home include the following:

• Ensure Good Ventilation. By using exhaust fans to eliminate accumulations of hot, moisture-laden air from your home, you can help prevent skylight condensation. Other helpful techniques include ensuring that all air vents are unobstructed and opening windows often. If you install automated skylights for easy opening and closing, you can also regulate moisture levels in your home’s interiors.

• Check Skylight Fitting. Have your skylight fitting and insulation checked for any gaps in your roof window’s outside panels. Caulk any cracks or holes in the corners or joints of your skylight. You should also remove any debris that has gathered around the roof flashing of the skylight. Check the skylight weather stripping for any weak spots.

• Stay Updated on New Skylight Solutions. By keeping in touch with your local skylight design and installation experts, you can stay updated on new industry developments. These professionals can advise you about new products and techniques for reducing moisture buildup on your roof window’s surfaces. They can also keep you informed about new skylight designs, operating features and maintenance techniques to help resolve all skylight condensation issues.

When you consult our experts at Amazing Skylights, serving all of Melbourne and surrounding regions, you can obtain answers to all of your skylight condensation questions and issues. Our experienced professionals will assist you in resolving your problems with moisture accumulation on the surfaces of the stunning roof windows in your home.

Your entire home will be healthier without any traces of mould, mildew or deterioration of your furnishings and decor. You can get back to enjoying the sheer beauty and allure of your stylish skylights, free of any moisture-related problems.

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